Update lsp-extensions.md

docs/dev/lsp-extensions.md

@@ -1,5 +1,5 @@
 <!---
-lsp_ext.rs hash: c6568e4035333f3a
+lsp_ext.rs hash: 49ffd619919ed74
 
 If you need to change the above hash to make the test pass, please check if you
 need to adjust this doc as well and ping this issue:
@@ -526,6 +526,14 @@ Renders rust-analyzer's crate graph as an SVG image.
 
 If `full` is `true`, the graph includes non-workspace crates (crates.io dependencies as well as sysroot crates).
 
+## Shuffle Crate Graph
+
+**Method:** `rust-analyzer/shuffleCrateGraph`
+
+**Request:** `null`
+
+Shuffles the crate IDs in the crate graph, for debugging purposes.
+
 ## Expand Macro
 
 **Method:** `rust-analyzer/expandMacro`