[clang-tidy/ObjC] Add hashing algorithm acronyms to objc-property-declaration

Summary:
This PR adds a few acronyms related to hashing algorithms to the standard
list in `objc-property-declaration`.

Reviewers: Wizard

Reviewed By: Wizard

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D48652

llvm-svn: 335770
diff --git a/clang-tools-extra/clang-tidy/objc/PropertyDeclarationCheck.cpp b/clang-tools-extra/clang-tidy/objc/PropertyDeclarationCheck.cpp
index dc15bdbe..366d71f 100644
--- a/clang-tools-extra/clang-tidy/objc/PropertyDeclarationCheck.cpp
+++ b/clang-tools-extra/clang-tidy/objc/PropertyDeclarationCheck.cpp
@@ -51,6 +51,7 @@
     "CF",
     "CG",
     "CI",
+    "CRC",
     "CV",
     "CMYK",
     "DNS",
@@ -62,6 +63,7 @@
     "GUID",
     "HD",
     "HDR",
+    "HMAC",
     "HTML",
     "HTTP",
     "HTTPS",
@@ -71,6 +73,8 @@
     "JS",
     "LAN",
     "LZW",
+    "MAC",
+    "MD",
     "MDNS",
     "MIDI",
     "NS",
@@ -86,12 +90,14 @@
     "RGB",
     "RGBA",
     "RGBX",
+    "RIPEMD",
     "ROM",
     "RPC",
     "RTF",
     "RTL",
     "SC",
     "SDK",
+    "SHA",
     "SSO",
     "TCP",
     "TIFF",