fixed a bug of not checking a parameter name against the function name

qse/cmd/awk/lang-001.awk

@@ -1,3 +0,0 @@
-
-function f(f) { print f; }
-BEGIN { f("hello"); }

qse/cmd/awk/lang-002.awk

@@ -1,5 +0,0 @@
-function f(f) 
-{ 
-	print f; 
-	f("my hello"); 
-}

qse/cmd/awk/lang-003.awk

@@ -1,3 +0,0 @@
-# should print 50
-function fn(f) { f = 20; }
-BEGIN { f = 50; fn(100); print f; }

qse/cmd/awk/lang-004.awk

@@ -1,3 +0,0 @@
-# A function and a named variable cannot have the same name.
-function a () { }
-BEGIN { a = 20; }

qse/cmd/awk/lang-005.awk

@@ -1,3 +0,0 @@
-function a () { } 
-BEGIN { local a; a = 20; }
-

qse/cmd/awk/lang-006.awk

@@ -1,2 +0,0 @@
-global a;
-function a () { }

qse/cmd/awk/lang-007.awk

@@ -1,4 +0,0 @@
-function fn () { a = 20; return a;}
-global a;
-BEGIN { a = 30; print fn (); print a; }
-

qse/cmd/awk/lang-008.awk

@@ -1,16 +0,0 @@
-global x;
-BEGIN {
-	x = 1;
-	{
-		local x;
-		x = 2;
-		{
-			local x;
-			x = 3;
-			print x;
-		}
-		print x;
-	}
-	print x;
-}
-