Memory: remove a part of the last merge request that causes crashes in multi-threaded mode.

glslang/Include/intermediate.h

@@ -847,9 +847,7 @@ class TIntermAggregate : public TIntermOperator {
 public:
     TIntermAggregate() : TIntermOperator(EOpNull), userDefined(false), pragmaTable(0) { }
     TIntermAggregate(TOperator o) : TIntermOperator(o), pragmaTable(0) { }
-    // Since pragmaTable is allocated with the PoolAllocator, we
-    // only want to destroy it, not free the associated memory.
-    ~TIntermAggregate() { pragmaTable->~TPragmaTable(); }
+    ~TIntermAggregate() { delete pragmaTable; }
     virtual       TIntermAggregate* getAsAggregate()       { return this; }
     virtual const TIntermAggregate* getAsAggregate() const { return this; }
     virtual void setOperator(TOperator o) { op = o; }

glslang/MachineIndependent/Intermediate.cpp

@@ -1613,13 +1613,7 @@ TIntermTyped* TIntermediate::promoteConstantUnion(TBasicType promoteTo, TIntermC
 void TIntermAggregate::addToPragmaTable(const TPragmaTable& pTable)
 {
     assert(!pragmaTable);
-
-    // We allocate this with the thread-pool allocator because the destructors
-    // for TIntermNode's are never called. When TIntermNodes are no longer
-    // needed, the pool allocator destroys all memory at once without
-    // destruction.
-    void* memory = GetThreadPoolAllocator().allocate(sizeof(TPragmaTable));
-    pragmaTable = new(memory) TPragmaTable();
+    pragmaTable = new TPragmaTable();
     *pragmaTable = pTable;
 }