Revert of SkSL performance improvements

src/sksl/ir/SkSLUnresolvedFunction.h

Index: src/sksl/ir/SkSLUnresolvedFunction.h
diff --git a/src/sksl/ir/SkSLUnresolvedFunction.h b/src/sksl/ir/SkSLUnresolvedFunction.h
index 3a368ad8d3f2a25ca2bb780995e6b678f86944ae..a6cee0d0720caafe68c7d91335a7c988b16e2848 100644
--- a/src/sksl/ir/SkSLUnresolvedFunction.h
+++ b/src/sksl/ir/SkSLUnresolvedFunction.h
@@ -16,21 +16,19 @@
  * A symbol representing multiple functions with the same name.
  */
 struct UnresolvedFunction : public Symbol {
-    UnresolvedFunction(std::vector<const FunctionDeclaration*> funcs)
+    UnresolvedFunction(std::vector<std::shared_ptr<FunctionDeclaration>> funcs)
     : INHERITED(Position(), kUnresolvedFunction_Kind, funcs[0]->fName)
     , fFunctions(std::move(funcs)) {
-#ifdef DEBUG
     	for (auto func : funcs) {
     		ASSERT(func->fName == fName);
     	}
-#endif
     }
 
     virtual std::string description() const override {
         return fName;
     }
 
-    const std::vector<const FunctionDeclaration*> fFunctions;
+    const std::vector<std::shared_ptr<FunctionDeclaration>> fFunctions;
 
     typedef Symbol INHERITED;
 };