move compiler/main.v to v.v

Makefile

@@ -19,7 +19,7 @@ endif
 all: fresh_vc fresh_tcc
 ifdef WIN32
 	$(CC) -std=c99 -w -o v0.exe vc/v_win.c
-	./v0.exe -o v.exe compiler
+	./v0.exe -o v.exe v.v
 	rm -f v0.exe
 else
 	$(CC) -std=gnu11 -w -o v vc/v.c -lm
@@ -27,7 +27,7 @@ else
 	V_V=`git rev-parse --short HEAD`; \
 	if [ $$VC_V != $$V_V ]; then \
 		echo "Self rebuild ($$VC_V => $$V_V)"; \
-		./v -o v compiler; \
+		./v v.v; \
 	fi)
 endif
 	rm -rf vc/
@@ -43,4 +43,4 @@ fresh_tcc:
 	git clone --depth 1 --quiet https://github.com/vmisc/tccbin /var/tmp/tcc
 
 selfcompile:
-	./v -o v compiler
+	./v v.v

make.bat

@@ -35,8 +35,8 @@ if %ERRORLEVEL% NEQ 0 (
 )
 
 echo Now using V to build V...
-v2.exe -o v3.exe compiler
-v3.exe -o v.exe -prod compiler
+v2.exe -o v3.exe v.v
+v3.exe -o v.exe -prod v.v
 if %ERRORLEVEL% NEQ 0 (
     echo v.exe failed to compile itself - Create an issue at 'https://github.com/vlang'
     exit /b 1
@@ -69,8 +69,8 @@ if %ERRORLEVEL% NEQ 0 (
 )
 
 echo rebuild from source (twice, in case of C definitions changes)
-v2.exe -os msvc -o v3.exe compiler
-v3.exe -os msvc -o v.exe -prod compiler
+v2.exe -os msvc -o v3.exe v.v
+v3.exe -os msvc -o v.exe -prod v.v
 if %ERRORLEVEL% NEQ 0 (
     echo V failed to build itself
     goto :compileerror