address pr comments

Author: farzonl

clang/include/clang/Basic/DiagnosticSemaKinds.td

@@ -2419,7 +2419,7 @@ def err_init_conversion_failed : Error<
   "return object|statement expression result|an "
   "exception object|a member subobject|an array element|a new value|a value|a "
   "base class|a constructor delegation|a vector element|a matrix element|a "
-  "block element|a block element|a complex element|a lambda capture|a compound"
+  "block element|a complex element|a lambda capture|a compound"
   " literal initializer|a related result|a parameter of CF audited function|a "
   "structured binding|a member subobject}0 "
   "%diff{of type $ with an %select{rvalue|lvalue}2 of type $|"

clang/include/clang/Sema/Initialization.h

@@ -209,7 +209,7 @@ class alignas(8) InitializedEntity {
     /// virtual base.
     llvm::PointerIntPair<const CXXBaseSpecifier *, 1> Base;
 
-    /// When Kind == EK_ArrayElement, EK_VectorElement, or EK_MatrixElement,
+    /// When Kind == EK_ArrayElement, EK_VectorElement, EK_MatrixElement,
     /// or EK_ComplexElement, the index of the array or vector element being
     /// initialized.
     unsigned Index;