[ConstraintSystem] NFC: Inline ConstraintLocator::directlyAt implementation into the header

Author: xedin

lib/Sema/ConstraintLocator.cpp

@@ -247,10 +247,6 @@ bool ConstraintLocator::isForOptionalTry() const {
   return directlyAt<OptionalTryExpr>();
 }
 
-template <typename E> bool ConstraintLocator::directlyAt() const {
-  return isExpr<E>(getAnchor()) && getPath().empty();
-}
-
 GenericTypeParamType *ConstraintLocator::getGenericParameter() const {
   // Check whether we have a path that terminates at a generic parameter.
   return isForGenericParameter() ?

lib/Sema/ConstraintLocator.h

@@ -381,7 +381,11 @@ class ConstraintLocator : public llvm::FoldingSetNode {
   bool isForOptionalTry() const;
 
   /// Determine whether this locator points directly to a given expression.
-  template <typename E> bool directlyAt() const;
+  template <typename E> bool directlyAt() const {
+    if (auto *expr = getAnchor().dyn_cast<Expr *>())
+      return isa<E>(expr) && getPath().empty();
+    return false;
+  }
 
   /// Attempts to cast the first path element of the locator to a specific
   /// \c LocatorPathElt subclass, returning \c None if either unsuccessful or