[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

llvm-svn: 350914

1 files changed, 2 insertions, 3 deletions

diff --git a/clang/lib/StaticAnalyzer/Core/MemRegion.cpp b/clang/lib/StaticAnalyzer/Core/MemRegion.cpp
index da368de3226..9a1d4d73c20 100644
--- a/clang/lib/StaticAnalyzer/Core/MemRegion.cpp
+++ b/clang/lib/StaticAnalyzer/Core/MemRegion.cpp
@@ -1105,9 +1105,8 @@ MemRegionManager::getCXXThisRegion(QualType thisPointerTy,
   // FIXME: when operator() of lambda is analyzed as a top level function and
   // 'this' refers to a this to the enclosing scope, there is no right region to
   // return.
-  while (!LC->inTopFrame() &&
-         (!D || D->isStatic() ||
-          PT != D->getThisType(getContext())->getAs<PointerType>())) {
+  while (!LC->inTopFrame() && (!D || D->isStatic() ||
+                               PT != D->getThisType()->getAs<PointerType>())) {
     LC = LC->getParent();
     D = dyn_cast<CXXMethodDecl>(LC->getDecl());
   }