[vala/0.48] tests: Add more Werror=... flags

[Rico Tzschichholz <ricotz src gnome org>]

commit 7f84443cdcdb991f9ae0fa251a3268aa2ac98608
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Mar 21 08:59:23 2022 +0100

    tests: Add more Werror=... flags

 configure.ac | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/configure.ac b/configure.ac
index 3a1daad0a..3ec646c3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -118,6 +118,7 @@ AC_SUBST(COVERAGE_LIBS)
 # Check supported compiler flags used in testrunner.sh
 TEST_EXTRA_CFLAGS="-Werror=init-self \
 -Werror=implicit \
+-Werror=implicit-fallthrough \
 -Werror=pointer-arith \
 -Werror=redundant-decls \
 -Werror=return-local-addr \
@@ -125,20 +126,34 @@ TEST_EXTRA_CFLAGS="-Werror=init-self \
 -Werror=return-type \
 -Werror=sequence-point \
 -Werror=uninitialized \
+-Werror=init-self \
+-Werror=int-in-bool-context \
 -Werror=int-to-pointer-cast \
 -Werror=pointer-to-int-cast \
 -Werror=compare-distinct-pointer-types \
+-Werror=empty-body \
+-Werror=comment \
+-Werror=strict-overflow \
 -Wformat=2 \
 -Werror=format-security \
 -Werror=format-nonliteral \
+-Werror=format-overflow=2 \
+-Werror=format-truncation=2 \
 -Werror=int-conversion \
 -Werror=duplicated-branches \
 -Werror=duplicated-cond \
 -Werror=declaration-after-statement \
 -Werror=maybe-uninitialized \
+-Werror=missing-braces \
+-Werror=missing-declarations \
 -Werror=missing-prototypes \
 -Werror=strict-prototypes \
+-Werror=bool-compare \
+-Werror=tautological-pointer-compare \
+-Werror=logical-not-parentheses \
+-Werror=address \
 -Werror=array-bounds \
+-Werror=array-parameter=2 \
 -Werror=enum-conversion"
 
 TEST_CFLAGS=