Clojure LSP: improve module resolution by parsing source path providers

test/resources/repos/clojure/test_repo/src/test_app/extra.clj

@@ -0,0 +1,12 @@
+(ns test-app.extra
+  (:require [test-app.core :as core]))
+
+(defn double-product
+  "Computes 2 * a * b by calling core/multiply twice."
+  [a b]
+  (core/multiply 2 (core/multiply a b)))
+
+(defn triple-product
+  "Computes a * b * c by calling core/multiply twice."
+  [a b c]
+  (core/multiply a (core/multiply b c)))

test/resources/repos/clojure/test_repo/sub_module/deps.edn

@@ -0,0 +1,2 @@
+{:paths ["src"]
+ :deps {test-app/test-app {:local/root "../"}}}

test/resources/repos/clojure/test_repo/sub_module/src/sub_module_app/consumer.clj

@@ -0,0 +1,15 @@
+(ns sub-module-app.consumer
+  "A consumer of test-app.core that lives in a sibling module with its own deps.edn,
+  mimicking the multi-module layout of real-world Clojure projects (e.g. penpot's
+  common/, frontend/, backend/ split). The bug being reproduced: references to
+  symbols defined in test-app.core are missed for files in sibling modules until
+  those files are explicitly opened/indexed via find_symbol or get_symbols_overview."
+  (:require [test-app.core :as core]))
+
+(defn quadruple-product
+  [a b]
+  (core/multiply 4 (core/multiply a b)))
+
+(defn quintuple-product
+  [a b]
+  (core/multiply 5 (core/multiply a b)))