tests: Combined deprecation tests into 1 file

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Ole Herman Schumacher Elgesem <ole@northern.tech>

Author: olehermanse

tests/lint/002_deprecations.expected.txt

@@ -0,0 +1,12 @@
+
+{
+  defaults:
+  ^-------^
+Deprecation: Promise type 'defaults' is deprecated at tests/lint/002_deprecations.x.cf:3:3
+
+    "Hello, CFEngine"
+      ifvarclass => "cfengine";
+      ^--------^
+Deprecation: Use 'if' instead of 'ifvarclass' at tests/lint/002_deprecations.x.cf:7:7
+FAIL: tests/lint/002_deprecations.x.cf (2 errors)
+Failure, 2 errors in total.

tests/lint/002_ifvarclass.x.cf tests/lint/002_deprecations.x.cftests/lint/002_ifvarclass.x.cf renamed to tests/lint/002_deprecations.x.cf

@@ -1,5 +1,7 @@
 bundle agent main
 {
+  defaults:
+    "x" string => "value";
   reports:
     "Hello, CFEngine"
       ifvarclass => "cfengine";