Fixed attribute location

Attribute location wasn't working properly.
This faulty constructor explains why.

Change-Id: I7701ad316df0684ad02ed405bd2905d56a848bd6
Reviewed-on: https://swiftshader-review.googlesource.com/8328
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/OpenGL/compiler/SymbolTable.cpp

diff --git a/src/OpenGL/compiler/SymbolTable.cpp b/src/OpenGL/compiler/SymbolTable.cpp
index 004a1d7..89ad4d1 100644
--- a/src/OpenGL/compiler/SymbolTable.cpp
+++ b/src/OpenGL/compiler/SymbolTable.cpp
@@ -34,7 +34,7 @@
 int TSymbolTableLevel::uniqueId = 0;
 
 TType::TType(const TPublicType &p) :
-	type(p.type), precision(p.precision), qualifier(p.qualifier), invariant(false), layoutQualifier(TLayoutQualifier::create()),
+	type(p.type), precision(p.precision), qualifier(p.qualifier), invariant(p.invariant), layoutQualifier(p.layoutQualifier),
 	primarySize(p.primarySize), secondarySize(p.secondarySize), array(p.array), arraySize(p.arraySize), maxArraySize(0),
 	arrayInformationType(0), interfaceBlock(0), structure(0), deepestStructNesting(0), mangled(0)
 {