Running tests in slang-test process (#740)

* First pass at having an interface to write text to that can be replaced.
Simplifed and made more rigerous the interface used to write formatted strings.

* Added AppContext to simplify setting up and parsing around of streams.

* Added more simplified way to get the std error/out from AppContext.

* Work in progress using dll for tools to speed up testing.

* First pass at ISlangWriter interface.

* Added support for writing VaArgs.
Added NullWriter.

* Use ISlangWriter for output.

* Use ISlangWriter for output - replacing OutputCallback.
Make IRDump go to ISlangWriter

* SlangWriterTargetType -> SlangWriterChannel
Improvements around AppContext

* Shared library working with slang-reflection-test.

* Dll testing working for render-test.

* Include va_list definintion from header.

* Fix errors from clang.

* Fix typo for linux.

* Added -usexes option

* Fix typo.

* Fix arguments problem on linux.

* Fix typo for linux.

* Add windows tool shared library projects.

* Fix warning from x86 win build.
Fix signed warning from slang-test/main.cpp

* First attempt at getting premake to work on travis, and run tests.

* Try moving build out into script.

* Invoke bash scripts so they don't have to be executable.

* Drive configuration/tests from env parameters set by travis

* Try using source to run travis tests.

* Remove the build.linux directory - but doing so will overwrite Makefile.

* Made -fno-delete-null-pointer-checks gcc only.

* Try to fix warning from -fno-delete-null-pointer-checks

* Turn of warnings for unknown switches.

* Try to make premake choose the correct tooling.

* Disabled missing braces warning.

* Disable -Wundefined-var-template on clang.

* -Wunused-function disabled for clang.

* Fix typo due to SlangBool.

* Remove this nullptr tests.

* "-Wno-unused-private-field" for clang.

* Added "-Wno-undefined-bool-conversion"

* Add DominatorList::end fix.

* Split scripts into travis_build.sh travis_test.sh

* Fix gcc/clang template pre-declaration issue around QualType.

* Fix premake to build such that pthread correctly links with slang-glslang

1 files changed, 13 insertions, 7 deletions

diff --git a/source/slang/ir.cpp b/source/slang/ir.cpp
index bc33527cf..784c5034d 100644
--- a/source/slang/ir.cpp
+++ b/source/slang/ir.cpp
@@ -3239,7 +3239,7 @@ namespace Slang
         dumpIRModule(&context, module);
     }
 
-    void dumpIR(IRGlobalValue* globalVal)
+    void dumpIR(IRGlobalValue* globalVal, ISlangWriter* writer)
     {
         StringBuilder sb;
 
@@ -3249,8 +3249,11 @@ namespace Slang
 
         dumpInst(&context, globalVal);
 
-        fprintf(stderr, "%s\n", sb.Buffer());
-        fflush(stderr);
+        writer->write(sb.Buffer(), sb.Length());
+        char cr[] = "\n";
+        writer->write(cr, 1);
+
+        writer->flush();
     }
 
     String getSlangIRAssembly(IRModule* module)
@@ -3260,13 +3263,16 @@ namespace Slang
         return sb;
     }
 
-    void dumpIR(IRModule* module)
+    void dumpIR(IRModule* module, ISlangWriter* writer)
     {
         String ir = getSlangIRAssembly(module);
-        fprintf(stderr, "%s\n", ir.Buffer());
-        fflush(stderr);
-    }
 
+        writer->write(ir.Buffer(), ir.Length());
+        char cr[] = "\n";
+        writer->write(cr, 1);
+
+        writer->flush();
+    }
 
     //
     //