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[cc1] Improve aligment of fields in Node and Symbol

With this new order it is needed less padding bytes.

--- a/cc1/cc1.h

+++ b/cc1/cc1.h

@@ -321,14 +321,14 @@

 };

 struct symbol {

-	char *name;

-	Type *type;

-	unsigned short id;

 	unsigned char ctx;

 	unsigned char hide;

 	char ns;

+	unsigned short id;

+	unsigned short flags;

+	char *name;

+	Type *type;

 	unsigned char token;

-	short flags;

 	union {

 		TINT i;

 		TUINT u;

@@ -345,9 +345,9 @@

 struct node {

 	unsigned char op;

+	unsigned char flags;

 	Type *type;

 	Symbol *sym;

-	char flags;

 	struct node *left, *right;

 };