Add missing reporting of some methods tried to find the dependency

Make us report 'system' and 'framework' when we tried those methods to
locate the dependency.

mesonbuild/dependencies/dev.py

@@ -80,6 +80,9 @@ class GTestDependency(ExternalDependency):
         else:
             return 'building self'
 
+    def log_tried(self):
+        return 'system'
+
     @classmethod
     def _factory(cls, environment, kwargs):
         methods = cls._process_method_kw(kwargs)
@@ -161,6 +164,9 @@ class GMockDependency(ExternalDependency):
         else:
             return 'building self'
 
+    def log_tried(self):
+        return 'system'
+
     @classmethod
     def _factory(cls, environment, kwargs):
         methods = cls._process_method_kw(kwargs)

mesonbuild/dependencies/misc.py

@@ -397,6 +397,8 @@ class Python3Dependency(ExternalDependency):
         else:
             return [DependencyMethods.PKGCONFIG]
 
+    def log_tried(self):
+        return 'sysconfig'
 
 class PcapDependency(ExternalDependency):
 

mesonbuild/dependencies/platform.py

@@ -34,3 +34,6 @@ class AppleFrameworks(ExternalDependency):
             self.link_args += ['-framework', f]
 
         self.is_found = mesonlib.is_osx()
+
+    def log_tried(self):
+        return 'framework'

mesonbuild/dependencies/ui.py

@@ -72,6 +72,8 @@ class GLDependency(ExternalDependency):
         else:
             return [DependencyMethods.PKGCONFIG]
 
+    def log_tried(self):
+        return 'system'
 
 class GnuStepDependency(ConfigToolDependency):
 
@@ -612,3 +614,6 @@ class VulkanDependency(ExternalDependency):
     @staticmethod
     def get_methods():
         return [DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM]
+
+    def log_tried(self):
+        return 'system'