Fix lua boolean errors by wrapping tostring

Author: jdsutherland

ftplugin/lua.vim

@@ -1,5 +1,5 @@
 function! s:DebugStringFunBase(desc, var)
-    let l:debug_str = 'print("' . a:desc . '" .. ' . a:var . ')'
+    let l:debug_str = 'print("' . a:desc . '" .. tostring(' . a:var . '))'
     return l:debug_str
 endfunc
 

test/ft/a.lua

@@ -1,2 +1,2 @@
-print("[[Vader-workbench]:$1$] DEBUGGING STRING ==> " .. $2$)
-print("a**2 + b**2: " .. a**2 + b**2)
+print("[[Vader-workbench]:$1$] DEBUGGING STRING ==> " .. tostring($2$))
+print("a**2 + b**2: " .. tostring(a**2 + b**2))