PP: Implement token pasting for PP identifiers.
Implement token pasting as per the C++ specification, within the current
style of the PP code.
Non-identifiers (turning 12 ## 10 into the numeral 1210) is not yet covered;
they should be a simple incremental change built on this one.
Addresses issue #255.
diff --git a/gtests/AST.FromFile.cpp b/gtests/AST.FromFile.cpp
index a2e961e..7070533 100644
--- a/gtests/AST.FromFile.cpp
+++ b/gtests/AST.FromFile.cpp
@@ -178,6 +178,7 @@
"syntaxError.frag",
"test.frag",
"texture.frag",
+ "tokenPaste.vert",
"types.frag",
"uniformArray.frag",
"variableArrayIndex.frag",