Generate Visual Studio projects using Premake (#557)

* Generate Visual Studio projects using Premake

This change adds a `premake5.lua` file that allows us to generate our Visual Studio solution using Premake 5 (https://premake.github.io/).
The existing Visual Studio solution/projects are now replaced with the Premake-generated ones, and project contributors will be expected to update these by running premake after adding/removing files.

I have *not* changed the Linux `Makefile` build at all, because that file is also used for things like running our tests, so that clobbering it with a premake-generated `Makefile` would break our continuous testing.
Hopefully future changes can switch to a generated `Makefile` and perhaps even add an XCode project as well.

Notes:

* The `build/slang-build.props` file is no longer needed/used, so it has been removed.

* The `slang-eval-test` test fixture wasn't following our naming conventions for its directory path, so it was updated to streamline the Premake build configuration work. This required changes to the `Makefile` as well

* Some seemingly unncessary preprocessor definitions that were specified for `core` and `slang-glslang` have been dropped. We will see if anything breaks from that.

* Possible fixup for Premake vpath issue

Premake's `vpath` feature seems to be nondeterministic about the order it applies filters (because Lua isn't deterministic about the order of entries in a key/value table), and as a result we can end up in a weird case where it decides that a `foo.cpp.h` file matches the `**.cpp` filter (I'm not sure why) before it tests against the `**.h` filter.

This change uses an (undocumented) Premake facility to set `vpath` using a list of singleton tables, which seems to fix the order in which things get tested.

* Remove support for "single-file" build of Slang

The `hello` example was the only bit of code that uses the "single-file" way of building Slang, and this had already run up against limitations of the Visual Studio compilers in its Debug|x64 build.
Rather than mess with Premake to make it pass through the `/bigobj` linker flag that is needed to work around the issue, it makes more sense just to stop using/supporting the feature since we wouldn't want users to depend on it anyway (our documentation no longer refers to it).

While I was at it I went ahead and made sure that the `SLANG_DYNAMIC` flag doesn't need to be set manually, so that instead there is a non-default `SLANG_STATIC` option (not that we have a static-library build of Slang at the moment).

3 files changed, 50 insertions, 63 deletions

diff --git a/source/slangc/main.cpp b/source/slangc/main.cpp
index 391642c3e..376b75212 100644
--- a/source/slangc/main.cpp
+++ b/source/slangc/main.cpp
@@ -1,6 +1,5 @@
 // main.cpp
 
-#define SLANG_DYNAMIC
 #include "../../slang.h"
 
 SLANG_API void spSetCommandLineCompilerMode(SlangCompileRequest* request);
diff --git a/source/slangc/slangc.vcxproj b/source/slangc/slangc.vcxproj
index 4855b7373..77a7dcea5 100644
--- a/source/slangc/slangc.vcxproj
+++ b/source/slangc/slangc.vcxproj
@@ -20,81 +20,87 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{D56CBCEB-1EB5-4CA8-AEC4-48EA35ED61C7}</ProjectGuid>
+    <IgnoreWarnCompileDuplicatedFilename>true</IgnoreWarnCompileDuplicatedFilename>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>slangc</RootNamespace>
-    <ProjectName>slangc</ProjectName>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
   </ImportGroup>
   <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\build\slang-build.props" />
   </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\build\slang-build.props" />
   </ImportGroup>
   <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\build\slang-build.props" />
   </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\build\slang-build.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <LinkIncremental>true</LinkIncremental>
+    <OutDir>..\..\bin\windows-x86\debug\</OutDir>
+    <IntDir>..\..\intermediate\windows-x86\debug\slangc\</IntDir>
+    <TargetName>slangc</TargetName>
+    <TargetExt>.exe</TargetExt>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
+    <OutDir>..\..\bin\windows-x64\debug\</OutDir>
+    <IntDir>..\..\intermediate\windows-x64\debug\slangc\</IntDir>
+    <TargetName>slangc</TargetName>
+    <TargetExt>.exe</TargetExt>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <LinkIncremental>false</LinkIncremental>
+    <OutDir>..\..\bin\windows-x86\release\</OutDir>
+    <IntDir>..\..\intermediate\windows-x86\release\slangc\</IntDir>
+    <TargetName>slangc</TargetName>
+    <TargetExt>.exe</TargetExt>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
+    <OutDir>..\..\bin\windows-x64\release\</OutDir>
+    <IntDir>..\..\intermediate\windows-x64\release\slangc\</IntDir>
+    <TargetName>slangc</TargetName>
+    <TargetExt>.exe</TargetExt>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <AdditionalIncludeDirectories>../</AdditionalIncludeDirectories>
-      <MultiProcessorCompilation>false</MultiProcessorCompilation>
-      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -103,15 +109,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <AdditionalIncludeDirectories>../</AdditionalIncludeDirectories>
-      <MultiProcessorCompilation>false</MultiProcessorCompilation>
-      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -120,57 +123,51 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <WarningLevel>Level4</WarningLevel>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <Optimization>MaxSpeed</Optimization>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Optimization>Full</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <AdditionalIncludeDirectories>../</AdditionalIncludeDirectories>
-      <MultiProcessorCompilation>false</MultiProcessorCompilation>
-      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <WarningLevel>Level4</WarningLevel>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <Optimization>MaxSpeed</Optimization>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Optimization>Full</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <AdditionalIncludeDirectories>../</AdditionalIncludeDirectories>
-      <MultiProcessorCompilation>false</MultiProcessorCompilation>
-      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
     <ProjectReference Include="..\core\core.vcxproj">
-      <Project>{f9be7957-8399-899e-0c49-e714fddd4b65}</Project>
+      <Project>{F9BE7957-8399-899E-0C49-E714FDDD4B65}</Project>
     </ProjectReference>
     <ProjectReference Include="..\slang\slang.vcxproj">
-      <Project>{db00da62-0533-4afd-b59f-a67d5b3a0808}</Project>
+      <Project>{DB00DA62-0533-4AFD-B59F-A67D5B3A0808}</Project>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="main.cpp" />
-  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/source/slangc/slangc.vcxproj.filters b/source/slangc/slangc.vcxproj.filters
index 0d8d9e457..e9ae1c092 100644
--- a/source/slangc/slangc.vcxproj.filters
+++ b/source/slangc/slangc.vcxproj.filters
@@ -1,17 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
-      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
-      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
-    </Filter>
-    <Filter Include="Header Files">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
-    </Filter>
-    <Filter Include="Resource Files">
-      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
-      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+      <UniqueIdentifier>{E9C7FDCE-D52A-8D73-7EB0-C5296AF258F6}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
   <ItemGroup>