Fix constructor-related typos.

Noticed by Roman Divacky.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190311 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index d499742..599c486 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -1587,7 +1587,7 @@
   AnalysisDeclContext AC(/* AnalysisDeclContextManager */ 0, D);
 
   // Don't generate EH edges for CallExprs as we'd like to avoid the n^2
-  // explosion for destrutors that can result and the compile time hit.
+  // explosion for destructors that can result and the compile time hit.
   AC.getCFGBuildOptions().PruneTriviallyFalseEdges = true;
   AC.getCFGBuildOptions().AddEHEdges = false;
   AC.getCFGBuildOptions().AddInitializers = true;
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index a4ed404..594f798 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -9937,7 +9937,7 @@
   assert(ClassDecl && "DefineImplicitCopyConstructor - invalid constructor");
 
   // C++11 [class.copy]p7:
-  //   The [definition of an implicitly declared copy constructro] is
+  //   The [definition of an implicitly declared copy constructor] is
   //   deprecated if the class has a user-declared copy assignment operator
   //   or a user-declared destructor.
   if (getLangOpts().CPlusPlus11 && CopyConstructor->isImplicit())
diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index d2fd0d8..7e4e17b 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -3017,7 +3017,7 @@
       unsigned NumArgs = 1;
       bool ListInitializing = false;
       if (InitListExpr *InitList = dyn_cast<InitListExpr>(From)) {
-        // But first, see if there is an init-list-contructor that will work.
+        // But first, see if there is an init-list-constructor that will work.
         OverloadingResult Result = IsInitializerListConstructorConversion(
             S, From, ToType, ToRecordDecl, User, CandidateSet, AllowExplicit);
         if (Result != OR_No_Viable_Function)