add new syntax test files

tests/syntax-tests/source/Tcl/test.tcl

@@ -0,0 +1,22 @@
+set part1 hello
+set part2 how; set part3 are
+set part4 you
+
+set part2;
+
+set greeting $part1$part2$part3$part4
+
+set somevar {
+    This is a literal $ sign, and this \} escaped
+    brace remains uninterpreted
+}
+
+set name Neo
+set greeting "Hello, $name"
+
+variable name NotNeo
+
+namespace eval people {
+    set name NeoAgain
+}
+