submodules: update clippy from 2f6881c to 754b4c0

Changes:
````
rustup rust-lang/rust#54071
dependencies: update pulldown-cmark from 0.1 to 0.2
s/file_map/source_map
````

clippy_lints/Cargo.toml

@@ -28,7 +28,7 @@ serde = "1.0"
 serde_derive = "1.0"
 toml = "0.4"
 unicode-normalization = "0.1"
-pulldown-cmark = "0.1"
+pulldown-cmark = "0.2"
 url = "1.7.0"
 if_chain = "0.1.3"
 smallvec = { version = "0.6.5", features = ["union"] }

clippy_lints/src/types.rs

@@ -1064,8 +1064,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for CastPass {
             if_chain!{
                 if let ty::RawPtr(from_ptr_ty) = &cast_from.sty;
                 if let ty::RawPtr(to_ptr_ty) = &cast_to.sty;
-                if let Some(from_align) = cx.layout_of(from_ptr_ty.ty).ok().map(|a| a.align.abi());
-                if let Some(to_align) = cx.layout_of(to_ptr_ty.ty).ok().map(|a| a.align.abi());
+                if let Some(from_align) = cx.layout_of(from_ptr_ty.ty).ok().map(|a| a.align.abi);
+                if let Some(to_align) = cx.layout_of(to_ptr_ty.ty).ok().map(|a| a.align.abi);
                 if from_align < to_align;
                 // with c_void, we inherently need to trust the user
                 if ! (

clippy_lints/src/utils/mod.rs

@@ -413,9 +413,9 @@ pub fn snippet_block<'a, 'b, T: LintContext<'b>>(cx: &T, span: Span, default: &'
 
 /// Returns a new Span that covers the full last line of the given Span
 pub fn last_line_of_span<'a, T: LintContext<'a>>(cx: &T, span: Span) -> Span {
-    let file_map_and_line = cx.sess().source_map().lookup_line(span.lo()).unwrap();
-    let line_no = file_map_and_line.line;
-    let line_start = &file_map_and_line.sf.lines[line_no];
+    let source_map_and_line = cx.sess().source_map().lookup_line(span.lo()).unwrap();
+    let line_no = source_map_and_line.line;
+    let line_start = &source_map_and_line.sf.lines[line_no];
     Span::new(*line_start, span.hi(), span.ctxt())
 }