tree.h (DECL_IGNORED_P, [...]): Clarify comments.

* tree.h (DECL_IGNORED_P, DECL_IN_SYSTEM_HEADER): Clarify comments.

Also fix a typo in a previous ChangeLog

From-SVN: r96903

gcc/ChangeLog

+2005-03-22  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>
+
+	* tree.h (DECL_IGNORED_P, DECL_IN_SYSTEM_HEADER): Clarify comments.
+
 2005-03-22  Daniel Berlin  <dberlin@dberlin.org>
 
 	* c-opts.c (c_common_parse_file): Only start/end main source file
@@ -26,7 +30,7 @@
 
 	* cgraphunit.c (cgraph_estimate_size_after_inlining): Compute
 	call cost based on argument sizes.
-	(cgraph_mark_inline_edge): Avoid inline unit from shringking by
+	(cgraph_mark_inline_edge): Avoid inline unit from shrinking by
 	inlining.
 	* params.def: (max-inline-inssn-single): Set to 450.
 	(max-inline-insns-auto): Set to 90.

gcc/tree.h

@@ -2059,8 +2059,8 @@ struct tree_binfo GTY (())
 #define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != NULL_TREE \
 				&& DECL_ABSTRACT_ORIGIN (NODE) != (NODE))
 
-/* Nonzero if a _DECL means that the name of this decl should be ignored
-   for symbolic debug purposes.  */
+/* Nonzero for a given ..._DECL node means that the name of this node should
+   be ignored for symbolic debug purposes.  */ 
 #define DECL_IGNORED_P(NODE) (DECL_CHECK (NODE)->decl.ignored_flag)
 
 /* Nonzero for a given ..._DECL node means that this node represents an
@@ -2071,8 +2071,8 @@ struct tree_binfo GTY (())
    any code or allocate any data space for such instances.  */
 #define DECL_ABSTRACT(NODE) (DECL_CHECK (NODE)->decl.abstract_flag)
 
-/* Nonzero if a _DECL means that no warnings should be generated just
-   because this decl is unused.  */
+/* Nonzero for a given ..._DECL node means that no warnings should be
+   generated just because this node is unused.  */
 #define DECL_IN_SYSTEM_HEADER(NODE) \
   (DECL_CHECK (NODE)->decl.in_system_header_flag)