[AST] Remove ASTContext from getThisType (NFC)

Summary:
https://reviews.llvm.org/D54862 removed the usages of `ASTContext&` from
within the `CXXMethodDecl::getThisType` method. Remove the parameter
altogether, as well as all usages of it. This does not result in any
functional change because the parameter was unused since
https://reviews.llvm.org/D54862.

Test Plan: check-clang

Reviewers: akyrtzi, mikael

Reviewed By: mikael

Subscribers: mehdi_amini, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D56509

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@350914 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index 172116e30c..d54e905061 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -3277,7 +3277,7 @@ IsInitializerListConstructorConversion(Sema &S, Expr *From, QualType ToType,
   case OR_Success: {
     // Record the standard conversion we used and the conversion function.
     CXXConstructorDecl *Constructor = cast<CXXConstructorDecl>(Best->Function);
-    QualType ThisType = Constructor->getThisType(S.Context);
+    QualType ThisType = Constructor->getThisType();
     // Initializer lists don't have conversions as such.
     User.Before.setAsIdentityConversion();
     User.HadMultipleCandidates = HadMultipleCandidates;
@@ -3458,7 +3458,7 @@ IsUserDefinedConversion(Sema &S, Expr *From, QualType ToType,
       //   sequence converts the source type to the type required by
       //   the argument of the constructor.
       //
-      QualType ThisType = Constructor->getThisType(S.Context);
+      QualType ThisType = Constructor->getThisType();
       if (isa<InitListExpr>(From)) {
         // Initializer lists don't have conversions as such.
         User.Before.setAsIdentityConversion();
@@ -5212,12 +5212,12 @@ Sema::PerformObjectArgumentInitialization(Expr *From,
                                           CXXMethodDecl *Method) {
   QualType FromRecordType, DestType;
   QualType ImplicitParamRecordType  =
-    Method->getThisType(Context)->getAs<PointerType>()->getPointeeType();
+    Method->getThisType()->getAs<PointerType>()->getPointeeType();
 
   Expr::Classification FromClassification;
   if (const PointerType *PT = From->getType()->getAs<PointerType>()) {
     FromRecordType = PT->getPointeeType();
-    DestType = Method->getThisType(Context);
+    DestType = Method->getThisType();
     FromClassification = Expr::Classification::makeSimpleLValue();
   } else {
     FromRecordType = From->getType();