[Fix #8096] Fix a false positive for Lint/SuppressedException

Fixes #8096

This PR fixes a false positive for `Lint/SuppressedException`
when empty rescue block in defs.

```console
% cat example.rb
def self.foo
rescue Foo
  # ok
end

% bundle exec rubocop --only Lint/SuppressedException
(snip)

Inspecting 1 file
W

Offenses:

example.rb:2:1: W: Lint/SuppressedException: Do not suppress exceptions.
rescue Foo
^^^^^^^^^^

1 file inspected, 1 offense detected
```

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 * [#8083](https://github.com/rubocop-hq/rubocop/issues/8083): Fix an error for `Lint/MixedRegexpCaptureTypes` cop when using a regular expression that cannot be processed by regexp_parser gem. ([@koic][])
 * [#8081](https://github.com/rubocop-hq/rubocop/issues/8081): Fix a false positive for `Lint/SuppressedException` when empty rescue block in `do` block. ([@koic][])
+* [#8096](https://github.com/rubocop-hq/rubocop/issues/8096): Fix a false positive for `Lint/SuppressedException` when empty rescue block in defs. ([@koic][])
 
 ## 0.85.0 (2020-06-01)
 

lib/rubocop/cop/lint/suppressed_exception.rb

@@ -78,7 +78,7 @@ def on_resbody(node)
 
         def comment_between_rescue_and_end?(node)
           end_line = nil
-          node.each_ancestor(:kwbegin, :def, :block) do |ancestor|
+          node.each_ancestor(:kwbegin, :def, :defs, :block) do |ancestor|
             end_line = ancestor.loc.end.line
             break
           end

spec/rubocop/cop/lint/suppressed_exception_spec.rb

@@ -49,6 +49,29 @@ def foo
       end
     end
 
+    context 'when empty rescue for defs' do
+      it 'registers an offense for empty rescue without comment' do
+        expect_offense(<<~RUBY)
+          def self.foo
+            do_something
+          rescue
+          ^^^^^^ Do not suppress exceptions.
+          end
+        RUBY
+      end
+
+      it 'registers an offense for empty rescue with comment' do
+        expect_offense(<<~RUBY)
+          def self.foo
+            do_something
+          rescue
+          ^^^^^^ Do not suppress exceptions.
+            # do nothing
+          end
+        RUBY
+      end
+    end
+
     context 'Ruby 2.5 or higher', :ruby25 do
       context 'when empty rescue for `do` block' do
         it 'registers an offense for empty rescue without comment' do
@@ -110,6 +133,28 @@ def foo
       end
     end
 
+    context 'when empty rescue for `defs`' do
+      it 'registers an offense for empty rescue without comment' do
+        expect_offense(<<~RUBY)
+          def self.foo
+            do_something
+          rescue
+          ^^^^^^ Do not suppress exceptions.
+          end
+        RUBY
+      end
+
+      it 'does not register an offense for empty rescue with comment' do
+        expect_no_offenses(<<~RUBY)
+          def self.foo
+            do_something
+          rescue
+            # do nothing
+          end
+        RUBY
+      end
+    end
+
     context 'Ruby 2.5 or higher', :ruby25 do
       context 'when empty rescue for `do` block' do
         it 'registers an offense for empty rescue without comment' do