Set the minor version to 10 (5.10) for language version

Author: shahmishal

include/swift/Basic/LangOptions.h

@@ -172,7 +172,7 @@ namespace swift {
     ///
 
     /// User-overridable language version to compile for.
-    version::Version EffectiveLanguageVersion = version::Version{5};
+    version::Version EffectiveLanguageVersion = version::Version{5, 10};
 
     /// Swift runtime version to compile for.
     version::Version RuntimeVersion = version::Version::getCurrentLanguageVersion();

lib/Basic/Version.cpp

@@ -176,7 +176,7 @@ llvm::Optional<Version> Version::getEffectiveLanguageVersion() const {
     assert(size() == 2 && Components[0] == 4 && Components[1] == 2);
     return Version{4, 2};
   case 5:
-    return Version{5};
+    return Version{5, 10};
   case 6:
     static_assert(SWIFT_VERSION_MAJOR == 6,
                   "getCurrentLanguageVersion is no longer correct here");