update syntax for new builtins

Author: andrewrk

syntax/zig.vim

@@ -131,7 +131,7 @@ let s:zig_syntax_keywords = {
     \ ,                  "@import"
     \ ,                  "@newStackCall"
     \ ,                  "@asyncCall"
-    \ ,                  "@intToPtr"
+    \ ,                  "@ptrFromInt"
     \ ,                  "@max"
     \ ,                  "@min"
     \ ,                  "@memcpy"
@@ -148,7 +148,7 @@ let s:zig_syntax_keywords = {
     \ ,                  "@panic"
     \ ,                  "@prefetch"
     \ ,                  "@ptrCast"
-    \ ,                  "@ptrToInt"
+    \ ,                  "@intFromPtr"
     \ ,                  "@rem"
     \ ,                  "@returnAddress"
     \ ,                  "@setCold"
@@ -172,19 +172,19 @@ let s:zig_syntax_keywords = {
     \ ,                  "@subWithOverflow"
     \ ,                  "@intCast"
     \ ,                  "@floatCast"
-    \ ,                  "@intToFloat"
-    \ ,                  "@floatToInt"
-    \ ,                  "@boolToInt"
+    \ ,                  "@floatFromInt"
+    \ ,                  "@intFromFloat"
+    \ ,                  "@intFromBool"
     \ ,                  "@errSetCast"
     \ ,                  "@truncate"
     \ ,                  "@typeInfo"
     \ ,                  "@typeName"
     \ ,                  "@TypeOf"
     \ ,                  "@atomicRmw"
-    \ ,                  "@intToError"
-    \ ,                  "@errorToInt"
-    \ ,                  "@intToEnum"
-    \ ,                  "@enumToInt"
+    \ ,                  "@errorFromInt"
+    \ ,                  "@intFromError"
+    \ ,                  "@enumFromInt"
+    \ ,                  "@intFromEnum"
     \ ,                  "@setAlignStack"
     \ ,                  "@frame"
     \ ,                  "@Frame"