Fix bad syntaxes. (#248)

Fixes #246.
Fixes #247.

Author: floitsch

vscode/syntaxes/toit.tmLanguage.json

@@ -40,7 +40,7 @@
         },
         {
           "name": "constant.language.import-export-all.as.toit",
-          "match": "\\b(?<!)as(?!-)\\b"
+          "match": "\\b(?<!-)as(?!-)\\b"
         },
         {
           "name": "constant.language.import-export-all.import_all.toit",
@@ -324,7 +324,7 @@
         {
           "name": "entity.name.type.annotation.toit",
           "begin": "(/|->) *(?=[\\p{L}_])",
-          "end": "(?=[^\\w-.?])",
+          "end": "(?=[^\\w\\-.?])",
           "beginCaptures": {
             "1": {
               "name": "keyword.control.return_type.toit"

vscode/syntaxes/toit.tmLanguage.yaml

@@ -44,7 +44,7 @@ repository:
     - name: constant.language.import-export-all.show.toit
       match: \b(?<!-)show(?!-)\b
     - name: constant.language.import-export-all.as.toit
-      match: \b(?<!)as(?!-)\b
+      match: \b(?<!-)as(?!-)\b
     - name: constant.language.import-export-all.import_all.toit
       match: \*
 
@@ -216,7 +216,7 @@ repository:
     patterns:
     - name: entity.name.type.annotation.toit
       begin: '(/|->) *(?=[\p{L}_])'
-      end: (?=[^\w-.?])
+      end: (?=[^\w\-.?])
       beginCaptures:
         1:
           name: keyword.control.return_type.toit