Add syntax highlighting support for int polyvars (#38)

* Add syntax highlighting support for int polyvars

* Update polyvar syntaxes

Author: amiralies

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## master
 
+**Improvements:**
+- Add syntax support for int polyvariants
+
 ## 2.0.1
 
 - Fixes an issue where `:RescriptTypeHint`, `:RescriptUpgrade` fail with an 127 exit code (due to missing analysis binaries)

examples/basic/src/polySyntax.res

@@ -0,0 +1,7 @@
+let a = #normal
+
+let b = #"exo-tic"
+
+let c = #\"legacy exo-tic"
+
+let d = #732

syntax/rescript.vim

@@ -88,6 +88,7 @@ syntax region resString start="\v[a-z]`" end="\v`" contains=resInterpolationVari
 
 " Polymorphic variants
 syntax match resPolyVariant "\v#[A-za-z][A-Za-z0-9_'$]*"
+syntax match resPolyVariant "\v#[0-9]+"
 syntax match resPolyVariant "\v#\".*\""
 syntax match resPolyVariant "\v#\\\".*\""