Remove excessive padding from the struct CallStackFrame

The struct CallStackFrame is in lib/AST/ExprConstant.cpp
inside anonymous namespace.
This diff reorders the fields and removes excessive padding.
Test plan: make -j8 check-clang

Differential revision: https://reviews.llvm.org/D23901

llvm-svn: 281907

clang/lib/AST/ExprConstant.cpp

@@ -310,15 +310,9 @@ namespace {
     /// Parent - The caller of this stack frame.
     CallStackFrame *Caller;
 
-    /// CallLoc - The location of the call expression for this call.
-    SourceLocation CallLoc;
-
     /// Callee - The function which was called.
     const FunctionDecl *Callee;
 
-    /// Index - The call index of this call.
-    unsigned Index;
-
     /// This - The binding for the this pointer in this call, if any.
     const LValue *This;
 
@@ -333,6 +327,12 @@ namespace {
     /// Temporaries - Temporary lvalues materialized within this stack frame.
     MapTy Temporaries;
 
+    /// CallLoc - The location of the call expression for this call.
+    SourceLocation CallLoc;
+
+    /// Index - The call index of this call.
+    unsigned Index;
+
     CallStackFrame(EvalInfo &Info, SourceLocation CallLoc,
                    const FunctionDecl *Callee, const LValue *This,
                    APValue *Arguments);