Feature/serialization debug info (#767)

* Remove AppContext. Use StdChannels to hold writers, and TestToolUtil to hold test tool specific functionality.

* StdChannels -> StdWriters

* getStdOut -> getOut, getStdError -> getError

* Renamed main.cpp files of tools to try and stop visual studio getting confused between files - such that clicking on an error takes editor to the right location.

* Work in progress on being able to serialize debug information.

* * Added MemoryStream
* First pass converting to IRSerialData
* Able to read and write IRSerialData with debug data

* Start at reconstruting IR serialized data.

* First pass of generation debug SourceLocs from debug data. Works for test set for line nos.

* Bug fixes.
Moved testing of serialization into IRSerialUtil

* Work around problem with  irModule = generateIRForTranslationUnit(translationUnit); two times in a row produces different output(!). Fix by just creating once.

* Remove problem with use of ternary op in slang.cpp on gcc/clang.

* Added -verify-debug-serial-ir option that makes IR modules go through full serialization with debug information and verification.

* Add a test that does serial debug verification that is run by default on linux.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/core/slang-string-slice-pool.h b/source/core/slang-string-slice-pool.h
index c9c8b8db9..08cd819ab 100644
--- a/source/core/slang-string-slice-pool.h
+++ b/source/core/slang-string-slice-pool.h
@@ -50,6 +50,8 @@ public:
 
         /// Convert a handle to and index. (A handle is just an index!) 
     static int asIndex(Handle handle) { return int(handle); }
+        /// Returns true if the handle is to a slice that contains characters (ie not null or empty)
+    static bool hasContents(Handle handle) { return int(handle) >= kNumDefaultHandles; }
 
         /// Ctor
     StringSlicePool();