Revert "TypeScript: disable queries that rely on token information"

This reverts commit 003b600e24.

javascript/ql/src/LanguageFeatures/EmptyArrayInit.ql

@@ -45,5 +45,4 @@ class OmittedArrayElement extends ArrayExpr {
 }
 
 from OmittedArrayElement ae
-where not ae.getFile().getFileType().isTypeScript() // ignore quirks in TypeScript tokenizer
 select ae, "Avoid omitted array elements."

javascript/ql/src/LanguageFeatures/SemicolonInsertion.ql

@@ -36,8 +36,7 @@ where s.hasSemicolonInserted() and
       asi = strictcount(Stmt ss | asi(sc, ss, true)) and
       nstmt = strictcount(Stmt ss | asi(sc, ss, _)) and
       perc = ((1-asi/nstmt)*100).floor() and
-      perc >= 90 and
-      not s.getFile().getFileType().isTypeScript() // ignore some quirks in the TypeScript tokenizer
+      perc >= 90
 select (LastLineOf)s, "Avoid automated semicolon insertion " +
                       "(" + perc + "% of all statements in $@ have an explicit semicolon).",
                       sc, "the enclosing " + sctype